The Evolution of Superconducting Phase MgB_x

• Authors: Sz. Łoś , W. Kempiński , L. Piekara-Sady , B. Andrzejewski , W. Jurga , K. Kaszyńska , J. Piekoszewski , Z. Werner , M. Barlak
• Languages of publication: EN

Abstracts

EN

Thin layers of MgB_x were studied in order to define evolution of superconducting phase after Mg ions implantation into boron substrate. Three fluencies of energies 140, 80, and 40 keV were used to establish proper stoichiometry to synthesize homogeneous MgB_2 film. Additionally, the annealing processes were carried out at temperatures 400, 500, and 600°C in a furnace in an atmosphere of flowing Ar-4%H_2 gas mixture. The quality of the superconducting material was examined by magnetically modulated microwave absorption, and magnetic and resistivity measurements. The results showed that T_c becomes higher with increasing annealing temperature. However, the fraction of superconducting phase decreases, due to partial evaporation of Mg ions and their deeper migration into boron substrate.

Keywords

EN

74.70.-b; 74.78.-w

Discipline

• 74.78.-w: Superconducting films and low-dimensional structures
• 74.70.-b: Superconducting materials other than cuprates(for cuprates, see 74.72.-h; for superconducting films, see 74.78.-w)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 1
• Pages: 179-184

Dates

published

2008-07

received

2007-11-06

Contributors

author

Sz. Łoś

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 61-179 Poznań, Poland

author

W. Kempiński

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 61-179 Poznań, Poland

author

L. Piekara-Sady

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 61-179 Poznań, Poland

author

B. Andrzejewski

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 61-179 Poznań, Poland

author

W. Jurga

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 61-179 Poznań, Poland

author

K. Kaszyńska

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 61-179 Poznań, Poland

author

J. Piekoszewski

• The Andrzej Sołtan Institute for Nuclear Studies, 05-400 Otwock/Świerk, Poland

author

Z. Werner

• The Andrzej Sołtan Institute for Nuclear Studies, 05-400 Otwock/Świerk, Poland

author

M. Barlak

• The Andrzej Sołtan Institute for Nuclear Studies, 05-400 Otwock/Świerk, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.114.179